fig1

Figure 1. Laparoscopic partial liver resection of segment 5. A: preoperative simulation; B: the resection plan is to include the MHV on the dorsal side of the tumor on the resection side. White arrows indicate MHVs; C: the targeted MHV is encircled on the left side of the resection plane; D: the planned MHV is included on the resection side; E: the divided surface of the specimen after resection. The white arrow indicates the MHV, which is useful as an indicator of the resection margin